Water-heater.



.any desired system may be readily and easily furnished and connected together JOHN N. MIDDENDORF, OF COVI-NGTON, KENTUCKY.

WATER-HEATER.

Application filed April 30,

Specification of Letters Patent.

Patented Oct. 25, 1910.

1910. Serial No. 558,603.

To all whom it may concern:

Be it known that I, Jonn N. Mrnnnnnonr, a citizen of the United States, and a resident of the city of Covington, in the county of Kenton and State of Kentucky, have invented certain new and, useful Improvements in Water-Heaters, of which the following .is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

The object of my invention is to provide .a simple, cheap and economical heater for heating water by the direct gas flame foruse in hot water circulating systems for the heating of houses and the like, and the invention consists of that certain novel constrnction to be hereinafter more particularly pointed out and claimed, in which the heater is 1nade up of similar sections or units, so that as many sections as may be required for each unit being provided with a as burner for the'direct separate heating of each section.

The several features of my invention and the Various advantages resulting from their use conj ointly or otherwise will be apparent from the following description and claims.

In the drawings,-Figure 1 is a perspective view of one of the complete heater sections. Fig. 2 is a horizontal section taken just below the water compartment of one of the units. Fig. 3 is a front elevation, partly in vertical section, of three of the heating units united together to form a complete heater Each heating unit is constructed of metal, preferably formed in a single piece and preferably rectangular in shape, in which 1 is the top; 2, 2, the side walls; 3, the front wall, and 4, the rear wall of the section. Each section. is also provided with the central partition 5, forming with the other walls a water compartment 6. The lower portion of the section is open at the bottom. Four lugs 7 7, and 8, 8, are formed integral with the side walls 2, and apertures are formed through each side wall into the water compartment 6 for securing the inlet pipe 9 and the outlet pipe 10 for each water compartment, The rear wall is also pro vided with a boss ll'integral with the rear wall, and an opening 12 is formed through the boss opening at 13 into the lower half lower compartment in front of which the burner is located. Suitable openin s 17, 17, are provided for this plate in w 'ch the usual damper is mounted for regulating the size of the opening, and the middle portion of the slide is cut away at 1B,.to allow for the passage of the gas supply pipe 19 and the pilot ,pipe 20 for the gas burner. The gas burner is located directly underneath the bottom plate of the water compartment, and any of the usual forms 49f gas burners may be provided. The one which I have by preference illustrated consists of three sections of gas pipe 21, .22 and 23, connected together at the front by a header 24 and suitable couplings, and provided with the air mixer 25.

26 is a small gas supply ipe with the section 27 leading .to eachoft e burner sections to serve as a pilot for maintaining a low flame when the main burner is turned oil', and each section of the burner and the pilot is provided with suitable openings for the passage of the gas.

All of the sections are made entirely alike, and it will be evident from the foregoing description that as many sections as desired may be readily and easily put together to form a complete heater of the desired capacity.

The lugs 7 7, and 8, 8, are provided with vertical openings 28, which register with each other when one section is laced on to of another section, 29, 29, are tle rods whic are passed through these openings, and the sections are clamped tightly together by the tightening nuts 30, 30, on each end of each tie rod. The inlet pipes 9 of each section are connected by tees 31 with the headers 32, and on the opposite sides the outlet pipes 10 are connected by the tees 33 with the header 34. At the back or rear of the header sections,-the bosses 11 with the openings 12 therethrough register with each other, so that through the openings 13 there will be a vent pipe for each burner, and to the uppermost section the ordinary vent pipe 35 will be secured, this pipe carrying if desired a damper 36.

It will be preferable to provide a suitable foundation block 37 for the complete heater, and the return pipe from the hot Water circulating system will by preference be connected to the lowermost tee 38 on the inlet pipe side, and the outlet to the hot water system will be connected to the uppermost tee on the outlet side of the heater.

With this construction, as many of the heating units as desired may be readily put together, and each unit will be furnished with its own burner with direct flame onto its individual Water compartment.

Having described my invention, what I claim as new and desire to secure by Letters Patent, is

1. A water heater formed from a plurality ofsimilar unit sections, each section forming a complete heater comprising a water compartment and a gas burner compartment underneath the Water compartment, inlet and outlet pipes for each Water compartment with pipe couplings for connecting together the inlet pipes and for connecting together the outlet pipes, lugs on each section with openings registering with each other and tie rods to pass through said lugs to bind the sections together.

2. A water heater formed from a plurality of similar sections, each section comprising a water compartment and a gas burner compartment underneath the water compartment, inlet and outlet pipes for each water compartment with headers for connecting together the inlet pipes and for connecting together the outlet pipes, each burner compartment having a vent opening with vertical passageway therethrough at the rear, and

with the vertical passages of each section registering with each other when the sections are assembled together to form a continuous vent pipe for the series of burners.

3. A Water heater formed from a plurality of similar sections, each section comprising a hollow rectangular member to form a water compartment with depending lugs to form a burner compartment, each burner compartment having a vent opening with vertical passageway therethrough at the rear, and with the vertical passages of each section registering with each other When the sections are assembled to form a continuous vent pipe for the series of burners.

4. A water heater formed from a plurality of similar unit sections, each section forming a complete heater comprising a water compartment and a gas burner compartment underneath the water compartment, inlet and outlet pipes for each water compartment with pipe couplings for connecting together the inlet pipes and for connecting together the outlet pipes, lugs on each section with openings reglstering with each other and tie rods to pass through said lugs to bind the sections together, each burner compartment having a vent opening with vertical passageway therethrough at the rear, and with the vertical passages of each section registering with each other when the sections are assembled to form a continuous vent pipe for the series of burners.

JOHN N. MIDDENDORF.

Attest:

ROBERT C. HARGITT, K. SMITH. 

